Does it always happen on the same site? Its possible it is the way the site is coded and could be the reason you are getting that error message.
I believe this is possible, try this.      - Open up BlackBerry Desktop Manager - Click on "Synchronize" - On the left hand side, right under "Configure", click "Synchronization" again - Th... Ver más...
I believe this is possible, try this.    - Open up BlackBerry Desktop Manager - Click on "Synchronize" - On the left hand side, right under "Configure", click "Synchronization" again - The first option is "Configure synchronization settings for my desktop program". Click "Synchronization" - Highlight  "Address Book" and the click " Advanced" in the bottom right   - At the top, you will see "Map Folder", click that.  - On the left you will see "Personal Folders" . Expand that list and the click "Contacts". Here you should see you other folder and can click "Add" and that should sync those contact folders.